From 21b9c8f804a11eb15eadfdeba1bfb894a31509b3 Mon Sep 17 00:00:00 2001
From: 4gray <4gray@users.noreply.github.com>
Date: Thu, 23 Mar 2023 23:41:13 +0100
Subject: [PATCH] feat: mpv player integration

---
 electron/api.ts                               | 48 ++++++++++++++-----
 shared/ipc-commands.ts                        |  3 ++
 .../video-player/video-player.component.html  |  8 ++++
 .../video-player/video-player.component.scss  | 14 ++++++
 .../video-player/video-player.component.ts    | 15 ++++++
 src/app/settings/settings.component.ts        |  4 ++
 src/app/settings/settings.interface.ts        |  1 +
 src/app/state/effects.ts                      | 20 ++++++++
 8 files changed, 102 insertions(+), 11 deletions(-)

diff --git a/electron/api.ts b/electron/api.ts
index 502d0511f..f798d5b84 100644
--- a/electron/api.ts
+++ b/electron/api.ts
@@ -24,6 +24,7 @@ import {
     MIGRATE_PLAYLISTS,
     MIGRATE_PLAYLISTS_RESPONSE,
     OPEN_FILE,
+    OPEN_MPV_PLAYER,
     PLAYLIST_PARSE_BY_URL,
     PLAYLIST_PARSE_RESPONSE,
     PLAYLIST_UPDATE,
@@ -36,6 +37,11 @@ import { ParsedPlaylist } from '../src/typings.d';
 const fs = require('fs');
 const https = require('https');
 
+const mpvAPI = require('node-mpv');
+const createMpvInstance = () => new mpvAPI({}, ['--autofit=70%']);
+let mpv = createMpvInstance();
+mpv.on('quit', () => (mpv = null));
+
 /** @deprecated - used only for migration */
 const Nedb = require('nedb-promises');
 
@@ -143,7 +149,7 @@ export class Api {
             )
             .on(
                 CHANNEL_SET_USER_AGENT,
-                (event, args: { userAgent: string; referer?: string }) => {
+                (_event, args: { userAgent: string; referer?: string }) => {
                     if (args.userAgent && args.referer) {
                         this.setUserAgent(args.userAgent, args.referer);
                     } else {
@@ -205,44 +211,64 @@ export class Api {
             })
             .on(DELETE_ALL_PLAYLISTS, (event) => {
                 this.removeAllPlaylists(event);
+            })
+            // eslint-disable-next-line @typescript-eslint/no-misused-promises
+            .on(OPEN_MPV_PLAYER, async (event, { url }) => {
+                try {
+                    if (mpv === null) {
+                        mpv = createMpvInstance();
+                    }
+                    if (mpv.isRunning()) {
+                        await mpv.load(url);
+                    } else {
+                        await mpv.start();
+                        await mpv.load(url);
+                    }
+                } catch (error) {
+                    console.log(error);
+                    event.sender.send(ERROR, {
+                        message:
+                            'Error: Something went wrong. Make sure that mpv player is installed on your system.',
+                    });
+                }
             });
 
         // listeners for EPG events
         ipcMain
-            .on(EPG_GET_PROGRAM, (event, arg) =>
+            .on(EPG_GET_PROGRAM, (_event, arg) =>
                 this.workerWindow.webContents.send(EPG_GET_PROGRAM, arg)
             )
-            .on(EPG_GET_CHANNELS, (event, arg) =>
+            .on(EPG_GET_CHANNELS, (_event, arg) =>
                 this.workerWindow.webContents.send(EPG_GET_CHANNELS, arg)
             )
-            .on(EPG_GET_CHANNELS_DONE, (event, arg) =>
+            .on(EPG_GET_CHANNELS_DONE, (_event, arg) =>
                 this.mainWindow.webContents.send(EPG_GET_CHANNELS_DONE, arg)
             )
-            .on(EPG_GET_PROGRAM_DONE, (event, arg) => {
+            .on(EPG_GET_PROGRAM_DONE, (_event, arg) => {
                 this.mainWindow.webContents.send(EPG_GET_PROGRAM_DONE, arg);
             })
-            .on(EPG_FETCH, (event, arg) =>
+            .on(EPG_FETCH, (_event, arg) =>
                 this.workerWindow.webContents.send(EPG_FETCH, arg?.url)
             )
-            .on(EPG_FETCH_DONE, (event, arg) =>
+            .on(EPG_FETCH_DONE, (_event, arg) =>
                 this.mainWindow.webContents.send(EPG_FETCH_DONE, arg)
             )
-            .on(EPG_ERROR, (event, arg) =>
+            .on(EPG_ERROR, (_event, arg) =>
                 this.mainWindow.webContents.send(EPG_ERROR, arg)
             )
-            .on(EPG_GET_CHANNELS_BY_RANGE, (event, arg) => {
+            .on(EPG_GET_CHANNELS_BY_RANGE, (_event, arg) => {
                 this.workerWindow.webContents.send(
                     EPG_GET_CHANNELS_BY_RANGE,
                     arg
                 );
             })
-            .on(EPG_GET_CHANNELS_BY_RANGE_RESPONSE, (event, arg) =>
+            .on(EPG_GET_CHANNELS_BY_RANGE_RESPONSE, (_event, arg) =>
                 this.mainWindow.webContents.send(
                     EPG_GET_CHANNELS_BY_RANGE_RESPONSE,
                     arg
                 )
             )
-            .on(EPG_FORCE_FETCH, (event, arg) =>
+            .on(EPG_FORCE_FETCH, (_event, arg) =>
                 this.workerWindow.webContents.send(EPG_FORCE_FETCH, arg)
             );
 
diff --git a/shared/ipc-commands.ts b/shared/ipc-commands.ts
index b227bc0f5..02a230682 100644
--- a/shared/ipc-commands.ts
+++ b/shared/ipc-commands.ts
@@ -40,3 +40,6 @@ export const DELETE_ALL_PLAYLISTS = 'DELETE_ALL_PLAYLISTS';
 // Auto-update
 export const AUTO_UPDATE_PLAYLISTS = 'AUTO_UPDATE';
 export const AUTO_UPDATE_PLAYLISTS_RESPONSE = 'AUTO_UPDATE_RESPONSE';
+
+// Experimental
+export const OPEN_MPV_PLAYER = 'OPEN_MPV_PLAYER';
diff --git a/src/app/player/components/video-player/video-player.component.html b/src/app/player/components/video-player/video-player.component.html
index 92a789537..ff78276e8 100644
--- a/src/app/player/components/video-player/video-player.component.html
+++ b/src/app/player/components/video-player/video-player.component.html
@@ -25,6 +25,7 @@
                 [class.hide-captions]="!playerSettings.showCaptions"
             ></app-vjs-player>
         </ng-container>
+
         <!-- default html player component -->
         <app-html-video-player
             *ngIf="playerSettings.player === 'html5'"
@@ -33,6 +34,13 @@
         >
         </app-html-video-player>
 
+        <ng-container *ngIf="(activeChannel$ | async) && playerSettings.player === 'mpv'">
+            <div class="mpv-player">
+                <img src="./assets/images/custom-player.png" />
+                <p>The channel is played in a separate window in the MPV player. (<a [routerLink] style="cursor: pointer;" (click)="openUrl('https://github.com/4gray/iptvnator/wiki/What-is-mpv-video-player-and-how-to-install-it-on-different-operating-systems%3F')">Installation instructions</a>)</p>
+            </div>
+        </ng-container>
+
         <!-- channel overlay -->
         <app-info-overlay
             [channel]="activeChannel$ | async"
diff --git a/src/app/player/components/video-player/video-player.component.scss b/src/app/player/components/video-player/video-player.component.scss
index 1a5469a15..8c759a255 100644
--- a/src/app/player/components/video-player/video-player.component.scss
+++ b/src/app/player/components/video-player/video-player.component.scss
@@ -22,3 +22,17 @@
         min-width: 200px;
     }
 }
+
+@media (prefers-color-scheme: dark) {
+    .mpv-player {
+        display: flex;
+        margin-top: 50px;
+        flex-direction: column;
+        align-items: center;
+
+        img {
+            filter: invert(100%);
+            width: 400px;
+        }
+    }
+}
diff --git a/src/app/player/components/video-player/video-player.component.ts b/src/app/player/components/video-player/video-player.component.ts
index 140b6b781..d84e53b93 100644
--- a/src/app/player/components/video-player/video-player.component.ts
+++ b/src/app/player/components/video-player/video-player.component.ts
@@ -8,6 +8,7 @@ import {
     OnDestroy,
     OnInit,
 } from '@angular/core';
+import { MatSnackBar } from '@angular/material/snack-bar';
 import { ActivatedRoute } from '@angular/router';
 import { Store } from '@ngrx/store';
 import { StorageMap } from '@ngx-pwa/local-storage';
@@ -20,6 +21,7 @@ import {
 } from 'rxjs';
 import { Channel } from '../../../../../shared/channel.interface';
 import {
+    ERROR,
     PLAYLIST_PARSE_BY_URL,
     PLAYLIST_PARSE_RESPONSE,
 } from '../../../../../shared/ipc-commands';
@@ -73,6 +75,14 @@ export class VideoPlayerComponent implements OnInit, OnDestroy {
 
     /** IPC Renderer commands list with callbacks */
     commandsList = [
+        {
+            id: ERROR,
+            execute: (response: { message: string }): void => {
+                this.snackBar.open(response.message, '', {
+                    duration: 3100,
+                });
+            },
+        },
         {
             id: PLAYLIST_PARSE_RESPONSE,
             execute: (response: { payload: Playlist }): void => {
@@ -109,6 +119,7 @@ export class VideoPlayerComponent implements OnInit, OnDestroy {
         private ngZone: NgZone,
         private overlay: Overlay,
         private playlistsService: PlaylistsService,
+        private snackBar: MatSnackBar,
         private storage: StorageMap,
         private store: Store
     ) {}
@@ -217,4 +228,8 @@ export class VideoPlayerComponent implements OnInit, OnDestroy {
         this.overlayRef.addPanelClass('epg-overlay');
         this.overlayRef.attach(componentPortal);
     }
+
+    openUrl(url: string) {
+        window.open(url, '_blank');
+    }
 }
diff --git a/src/app/settings/settings.component.ts b/src/app/settings/settings.component.ts
index 766b5902f..fbbbc521f 100644
--- a/src/app/settings/settings.component.ts
+++ b/src/app/settings/settings.component.ts
@@ -47,6 +47,10 @@ export class SettingsComponent implements OnInit {
             id: VideoPlayer.VideoJs,
             label: 'VideoJs Player',
         },
+        {
+            id: VideoPlayer.MPV,
+            label: 'MPV Player',
+        },
     ];
 
     /** Current version of the app */
diff --git a/src/app/settings/settings.interface.ts b/src/app/settings/settings.interface.ts
index c55e83e7b..544b45ff3 100644
--- a/src/app/settings/settings.interface.ts
+++ b/src/app/settings/settings.interface.ts
@@ -8,6 +8,7 @@ import { Theme } from './theme.enum';
 export enum VideoPlayer {
     VideoJs = 'videojs',
     Html5Player = 'html5',
+    MPV = 'mpv',
 }
 
 /**
diff --git a/src/app/state/effects.ts b/src/app/state/effects.ts
index fcc0845a2..b1ae3b1ac 100644
--- a/src/app/state/effects.ts
+++ b/src/app/state/effects.ts
@@ -4,14 +4,19 @@ import { MatSnackBar } from '@angular/material/snack-bar';
 import { Router } from '@angular/router';
 import { Actions, createEffect, ofType } from '@ngrx/effects';
 import { Store } from '@ngrx/store';
+import { StorageMap } from '@ngx-pwa/local-storage';
 import { TranslateService } from '@ngx-translate/core';
+import { firstValueFrom } from 'rxjs';
 import { combineLatestWith, map, switchMap, tap } from 'rxjs/operators';
 import {
     CHANNEL_SET_USER_AGENT,
     EPG_GET_PROGRAM,
+    OPEN_MPV_PLAYER,
 } from '../../../shared/ipc-commands';
 import { DataService } from '../services/data.service';
 import { PlaylistsService } from '../services/playlists.service';
+import { Settings, VideoPlayer } from '../settings/settings.interface';
+import { STORE_KEY } from '../shared/enums/store-keys.enum';
 import * as PlaylistActions from './actions';
 import {
     selectActivePlaylistId,
@@ -72,6 +77,20 @@ export class PlaylistEffects {
                         userAgent: channel.http['user-agent'],
                     });
                 }
+
+                firstValueFrom(this.storage.get(STORE_KEY.Settings)).then(
+                    (settings: Settings) => {
+                        if (
+                            settings &&
+                            Object.keys(settings).length > 0 &&
+                            settings.player === VideoPlayer.MPV
+                        )
+                            this.dataService.sendIpcEvent(OPEN_MPV_PLAYER, {
+                                url: channel.url,
+                            });
+                    }
+                );
+
                 return PlaylistActions.setActiveChannelSuccess({
                     channel: action.channel,
                 });
@@ -230,6 +249,7 @@ export class PlaylistEffects {
         private dataService: DataService,
         private router: Router,
         private snackBar: MatSnackBar,
+        private storage: StorageMap,
         private store: Store,
         private translate: TranslateService
     ) {}